Here's a Wii U rumour that's more towards the 'believable' end of the scale: Wii U's new controller could include haptic technology.

According to an E3 floor plan (via NeoGAF), haptics specialist ViviTouch will show a Wii U peripheral at the upcoming trade show.

ViviTouch's haptic tech is a more advanced form of physical feedback than current rumble systems: a video at the bottom explains more.

Of course this doesn't necessarily mean the Wii U controller will include haptics built in — ViviTouch could be planning an add-on for the screen — and those of you with good memories will remember one of the rumoured names for Wii U was "Nintendo Feel", which would supposedly feature haptic technology.